10 Best Diy Mini Splits 2025 in the United States

The Senville LETO Series Mini Split is a quiet and energy-efficient unit with a cooling capacity of about 10,300 BTUs, suitable for spaces around 400 square feet. It stands out with a strong SEER rating of 19 (measuring energy efficiency), and smart Alexa integration for easy voice or app control—great if you like modern convenience. It offers heating and cooling through an inverter heat pump system that works down to very cold temperatures (-15°C), making it useful year-round.

Noise levels are low at about 25 dB, so it won’t disturb your peace. This model is designed for professional installation and is not DIY-friendly, which might add to your upfront cost and complexity if you were hoping to install it yourself. It uses standard 110V power, which fits most home electrical setups.

The package comes complete with indoor and outdoor units plus all necessary installation materials, and the manufacturer backs it with a solid 5-year warranty on the compressor. This mini split fits well for those seeking a stylish, reliable heating and cooling solution with smart home features, but if you want an easy DIY setup, this might not be the best choice.

The Senville AURA Series Mini Split offers a powerful 33,000 BTU cooling and heating capacity, making it suitable for medium to large rooms or small commercial spaces. It boasts strong energy efficiency with a SEER rating of 19.5 and Energy Star certification, promising lower electricity costs compared to less efficient models. The system operates quietly at 35 dB, which is pleasant for most indoor environments.

Smart features like Alexa compatibility and WiFi control add convenience, allowing easy temperature adjustments via voice commands or app from anywhere. This model requires professional installation, which means it’s not a true DIY option if you're looking to install it yourself; this also affects the warranty's validity. It runs on 220 volts and comes with necessary components like the indoor air handler, outdoor condenser, and line set. While it’s a single-zone system, it covers a considerable area efficiently.

The included 5-year parts and 10-year compressor warranty provide good peace of mind, though labor costs for installation are not covered. The Senville AURA is a solid choice for those wanting a reliable, energy-saving mini split with modern smart features, provided you are comfortable hiring a professional for setup.

The MRCOOL 12000 BTU Easy Pro Series mini split is a solid choice for anyone looking to install a ductless heating and cooling system themselves. With 12,000 BTUs, it can efficiently cover spaces up to about 550 square feet, making it suitable for small homes, offices, or commercial areas. Its combo heating and cooling feature means you get year-round comfort from one unit. Installation is designed with DIY users in mind, which is a big plus if you want to avoid professional installation costs. Operating at 115 volts, it fits standard electrical setups, simplifying the hookup. The system runs quietly at 43 decibels, so it won’t be distracting in daily life.

It also includes helpful smart features like a timer and refrigerant leakage detection, which add convenience and safety. The Active Clean Technology helps keep the air fresh with easy-to-clean filters, supporting better indoor air quality. On the downside, its energy efficiency is moderate with a 2-star BEE rating, which means it might not be the most cost-effective option in the long run compared to higher-rated models. Additionally, this is a single-zone system, so it’s best if you only need to control one room or area.

In summary, this MRCOOL mini split is a user-friendly, reasonably quiet, and versatile system that works well for smaller spaces and DIY installation, but energy efficiency and zoning needs should be considered when making your choice.